Defer loading of audio/video tags while prerendering.

chrome/browser/prerender/prerender_browsertest.cc

 // Copyright (c) 2011 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include <deque>
 
 #include "base/command_line.h"
 #include "base/path_service.h"
 #include "base/stringprintf.h"
 #include "base/string_util.h"
@@ skipping 1235 matching lines @@
     }
   }
   EXPECT_EQ(0, num_prerender_tabs);
 
   // We may have deleted the prerender tab, but the swapped in tab should be
   // active.
   EXPECT_GE(num_tabs_with_prerender_page_title, 1);
   EXPECT_LE(num_tabs_with_prerender_page_title, 2);
 }
 
-// Checks that prerenderers will terminate when an audio tag is encountered.
+// Checks that audio loads are deferred on prerendering.
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderHTML5Audio) {
   PrerenderTestURL("files/prerender/prerender_html5_audio.html",
-                   FINAL_STATUS_HTML5_MEDIA,
+                   FINAL_STATUS_USED,
                    1);
+  string16 expected_title = ASCIIToUTF16("PASS");
+  ui_test_utils::TitleWatcher title_watcher(
+      GetPrerenderContents()->prerender_contents()->tab_contents(),
+      expected_title);
+  NavigateToDestURL();
+  EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
 }
 
-// Checks that prerenderers will terminate when a video tag is encountered.
+// Checks that audio loads are deferred on prerendering and played back when
+// the prerender is swapped in if autoplay is set.
+IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderHTML5AudioAutoplay) {
+  PrerenderTestURL("files/prerender/prerender_html5_audio_autoplay.html",
+                   FINAL_STATUS_USED,
+                   1);
+  string16 expected_title = ASCIIToUTF16("PASS");
+  ui_test_utils::TitleWatcher title_watcher(
+      GetPrerenderContents()->prerender_contents()->tab_contents(),
+      expected_title);
+  NavigateToDestURL();
+  EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
+}
+
+// Checks that audio loads are deferred on prerendering and played back when
+// the prerender is swapped in if js starts playing.
+IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderHTML5AudioJsplay) {
+  PrerenderTestURL("files/prerender/prerender_html5_audio_jsplay.html",
+                   FINAL_STATUS_USED,
+                   1);
+  string16 expected_title = ASCIIToUTF16("PASS");
+  ui_test_utils::TitleWatcher title_watcher(
+      GetPrerenderContents()->prerender_contents()->tab_contents(),
+      expected_title);
+  NavigateToDestURL();
+  EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
+}
+
+// Checks that video loads are deferred on prerendering.
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderHTML5Video) {
   PrerenderTestURL("files/prerender/prerender_html5_video.html",
-                   FINAL_STATUS_HTML5_MEDIA,
+                   FINAL_STATUS_USED,
                    1);
+  string16 expected_title = ASCIIToUTF16("PASS");
+  ui_test_utils::TitleWatcher title_watcher(
+      GetPrerenderContents()->prerender_contents()->tab_contents(),
+      expected_title);
+  NavigateToDestURL();
+  EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
 }
 
-// Checks that prerenderers will terminate when a video tag is inserted via
-// javascript.
+// Checks that video tags inserted by javascript are deferred and  played

[scherkus (not reviewing), 2011/11/08 06:21:06]

nit: "and  played " -> "and played"

[Shishir, 2011/11/09 22:27:47]

Done.

+// correctly on swap in.
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderHTML5VideoJs) {
   PrerenderTestURL("files/prerender/prerender_html5_video_script.html",
-                   FINAL_STATUS_HTML5_MEDIA,
+                   FINAL_STATUS_USED,
                    1);
+  string16 expected_title = ASCIIToUTF16("PASS");
+  ui_test_utils::TitleWatcher title_watcher(
+      GetPrerenderContents()->prerender_contents()->tab_contents(),
+      expected_title);
+  NavigateToDestURL();
+  EXPECT_EQ(expected_title, title_watcher.WaitAndGetTitle());
 }
 
 // Checks that scripts can retrieve the correct window size while prerendering.
 #if defined(TOOLKIT_VIEWS)
 // TODO(beng): Widget hierarchy split causes this to fail http://crbug.com/82363
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, DISABLED_PrerenderWindowSize) {
 #else
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderWindowSize) {
 #endif
   PrerenderTestURL("files/prerender/prerender_size.html",
@@ skipping 551 matching lines @@
 IN_PROC_BROWSER_TEST_F(PrerenderBrowserTest, PrerenderSessionStorage) {
   set_loader_path("files/prerender/prerender_loader_with_session_storage.html");
   PrerenderTestURL(GetCrossDomainTestUrl("files/prerender/prerender_page.html"),
                    FINAL_STATUS_USED,
                    1);
   NavigateToDestURL();
   GoBackToPageBeforePrerender(browser());
 }
 
 }  // namespace prerender